How to ventilate cowpeas in greenhouses? What should be paid attention to when harvesting mature cowpeas?

Cowpea is a plant of the Leguminosae family. It is native to Africa and is now widely grown in my country. It is also a very common vegetable. It is an annual herb, commonly found in dryland crops, and likes to grow in areas with fertile soil and deep soil. Let's take a look at the planting information of cowpea on this site!

How to ventilate cowpea in greenhouse

The use of spring and autumn greenhouses in spring is mainly to prevent the occurrence of diseases and insect pests caused by excessively high temperatures. Ventilation is also particular. Generally, the vents of spring and autumn greenhouses are on both sides of the greenhouse, forming a convection mode, and the ventilation effect is also very good. The main thing is to grasp the time well, and not to cause damage to crops because the vents are too large. Compared with the better solar conditions in spring, the temperature in the film of the spring and autumn greenhouse can reach 30 degrees at noon, which is not conducive to the growth of crops. Reasonable ventilation and heat dissipation are required, and the temperature is basically around 20 degrees.

What should you pay attention to when harvesting mature cowpeas?

Cowpeas should be harvested in batches. The first harvest can be carried out half a month after flowering, and it can be picked every 2 to 3 days during the peak fruiting period. When picking, diseased pods should be discarded directly, and deformed pods should be picked separately.

When harvesting cowpeas, you must be particularly careful not to damage other buds under the inflorescence, and you must not pick the inflorescence together. The pods must be harvested in time, otherwise the pods will age, the flesh will become loose, and the skin will become thick, which will affect the taste of the pods.

When to plant and fix cowpea seedlings

After sowing cowpea, you should frequently go to the field to check carefully. Depending on the temperature, the seedlings will emerge in about 5 to 6 days. After the cowpeas emerge, you should promptly ventilate and release the seedlings to prevent the seedlings from being burned by the high temperature at noon. When releasing the seedlings, the incision should not be too large, about 3 cm is better. Be careful not to hurt the cotyledons of the cowpea seedlings. After releasing the seedlings, press the incision with soil to prevent moisture from running away.

If the temperature is low or there is a cold wave, the emergence of cowpea seedlings may be delayed, so you should also pay attention to planting the seedlings later. The seedlings should be fixed about 15 to 20 days after planting, and weak seedlings, diseased and insect-infested seedlings should be pulled out. A maximum of 2 seedlings should be left in each nest. If the seedlings are strong, only one seedling will be enough. For the places where there are missing seedlings, they should be replanted in time, and it is important to bring water for replanting to improve the survival rate.

Do I need to till the soil before planting cowpea?

After the soil thaws in early spring, the land should be deep-turned and tilled. Before tilling the land, the crop straw and weeds on the land should be cleaned up, and about 3,000 kg of decomposed farmyard manure and 50 kg of balanced triple compound fertilizer should be applied as base fertilizer. After deep-turning the soil with a large tractor, the soil should be treated by spraying pesticides, and the soil should be rotary-tilled and leveled. Then ridges should be made and the soil should be ready for sowing at the right time.